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This content comes from Closed Captioning that was broadcast along with this program.

>>is announcing steps to counteract cyber attacks by the
chinese government
, who allegedly is trying to cause chaos here.

>>attorney general and others will be speaking out against the dangers of cyber attacks. major war against the cyber u.s. nonzript neighborhood and this 12-story building, the source of thousands of cyber attacks against 141 u.s. companies, spanning 20 industries. according to a new security report confirmed by
u.s. intelligence
, it is the headquarters of unit 61398, cyber warriors for china's people's liberty.

>> reporter: other targets, the news media, including "the new york times," the
washington post
and
wall street journal
. and familiar brands like
coca cola
, facebook. ugly gorilla and dota, according to this instructional video from the
computer security
firm that did the study.

>>we see dota logging in.

>> reporter: attackers send deceptive e-mails, tricking users to clicking on a malicious link to a phony website so the hackers can steal confidential files, grabbing them back to shanghai.

>>when these companies are engaging in business in china, they are really going up against the full resources of the
chinese government
.

>> reporter: officials say they got nowhere. even this week, china's government again denied responsibility for the attacks. and computer experts say most companies are afraid if they complain about the hacking they'll then lose access to billions of dollars of business in china.